Home / 159,994,756.86-220,810,709.82-90,384,621.78

Finding the Fourth Proportional to 159,994,756.86, 220,810,709.82 and 90,384,621.78

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Solution

The fourth proportional to 159,994,756.86, 220,810,709.82 and 90,384,621.78 is: 124,740,915.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,994,756.86 : 220,810,709.82 = 90,384,621.78 : x
  2. Step 2: Convert to fraction form
    159,994,756.86/220,810,709.82 = 90,384,621.78/x
  3. Step 3: Cross multiply
    159,994,756.86x = 220,810,709.82 × 90,384,621.78
  4. Step 4: Simplify right side
    159,994,756.86x = 19,957,892,492,054,032
  5. Step 5: Solve for x
    x = 19,957,892,492,054,032/159,994,756.86
  6. Step 6: Final answer
    x = 124,740,915.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.